chrysler_dodge_jeep_ram

Chrysler Drive Cycle – ODB2 Readiness Monitors

Jeep, Chrysler, and Dodge Drive Cycle

For all drive cycles, make sure the check engine light (MIL) is off.

All Monitor Drive Trace

Pre-Conditioning Requirements:

>> MIL must be off

>> Cold start (Note: cold start temperature is undefined)

Driving Procedure :

1) Warm engine up for five minutes (must reach closed loop)

2) Drive (with steady throttle) at a speed between 40 and 60 mph for 8 minutes.

3) Stop and idle for 3 minutes.

4) Drive (with steady throttle) at a speed above 20 mph for 2 minutes.

5) Turn key off, leave off for ten minutes (to run O2 sensor heater monitor).

Note: Due to the limited preconditions provided with this drive trace, NCVECS recommends using the monitor specific drive traces for Chrysler vehicles.

Catalyst Monitor Drive Trace

Pre-Conditioning Requirements:

>> MIL must be off.

>> No DTCs present.

>> Fuel level is between 15% and 85% full.

>> ECT above 70º F.

>> Engine must have run at least 90 seconds

>> Engine between 1,350 & 1,900 rpm.

Driving Procedure :

1) Idle vehicle for five minutes (to reach closed loop operation).

2) Drive with a steady vehicle speed between 30 and 45 mph for 2 minutes.

EGR System Monitor Drive Trace – Vacuum controlled

Pre-Conditioning Requirements:

>> MIL must be off.

Driving Procedure :

1) Idle vehicle for five minutes (to reach closed loop operation).

2) Drive with a steady vehicle speed between 40 & 60 mph for 8 minutes.

EGR System Monitor Drive Trace – Electronic

Pre-Conditioning Requirements:

>> MIL must be off.

>> MAP must be between 0-60 KPa.

>> Engine speed between 500-850 rpm.

>> ECT is above 180º F (90º C).

>> No misfire temporary (pending) or matured fault present.

>> A/C clutch, PS Switch and Cooling fans do not change state (turn off).

Driving Procedure:

1) Idle vehicle for five (5) minutes (to reach closed loop operation).

2) Drive with a steady vehicle speed between 40 & 60 mph for 2 minutes.

3) Idle vehicle for three (3) minutes.

Note: This monitor evaluates EGR flow based on a change of engine roughness (idle stability). Conditions causing un-stable idle will prevent this monitor from running.

Evaporative System Monitor Drive Trace
Trace 1: Standard Type – Make sure that your fuel level is between 50% and 85% full.
Idle for 5 minutes
Smoothly accelerate and maintain a speed between 30 to 45 mph for 2 minutes.

Trace 2: Leak Detection Pump
From 6-8 hours of the vehicle being off (cold soak), idle for 5 minutes
Drive in city traffic naturally with stops and acceleration for 5 minutes.
Stop. Idle vehicle for 4 minutes.

O2 Sensor Monitor Drive Trace
Idle for 5 minutes
Smoothly accelerate and maintain a speed above 25 mph for 2 minutes.
Stop and idle for 30 seconds.
Smoothly accelerate and maintain a speed between 30 to 40 mph
Repeat idle and acceleration to 30-40 mph five times.

O2 Sensor Heater Monitor Drive Trace
Idle for 5 minutes, then shut the engine and leave the vehicle off for 10 minutes.

When the monitors are completed, you are ready to go to the smog station.

Source: https://img.neons.org/AGN/chrysler_drive_cycle.pdf